RhysD: Okay, here comes my first attempt at posting something substantial. Black is alive.
After , a and b are miai for a second eye in the corner.
If white plays the hane to prevent an eye in the corner, I think is the only move. is the strongest continuation for white (Edit: Wrong! I just looked at the solution page. at makes a ko.), but is a tesuji. Black now has an unassailable second eye at a.
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![[Diagram]](diagrams/52/fe03ef24709479956d155e5f2b5026b2.png)
, a and b are miai for a second eye in the corner.
![[Diagram]](diagrams/22/4c03f216c9e37edae572bb6064e21449.png)
is the only move. 
is the strongest continuation for white (Edit: Wrong! I just looked at the solution page. 
makes a ko.), but